c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require': no such file to load -- c:/ruby/
lib/ruby/gems/1.8/gems/linecache-0.42-x86-mswin32/lib/../ext/trace_nums (LoadError)
from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
from c:/ruby/lib/ruby/gems/1.8/gems/linecache-0.42-x86-mswin32/lib/tracelines.rb:8
from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
from c:/ruby/lib/ruby/gems/1.8/gems/linecache-0.42-x86-mswin32/lib/linecache.rb:63
from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
...